[TowerTalk] Fastening sections of 3" boom material

[donovanf at starpower.net]

Bill,

I used two pieces of 3 inch o.d. by 0.125 inch wall aluminum tubing in all of my 48 foot boom Yagis.  Its an excellent choice.

Like you, I've never found a standars product to splice the booms.  I purchased steel tubing from Dillsburg Aeroplane Works, cut it into two foot lengths, and used a lathe to reduce the diameter to about 2.65 o.d. and had it galvanized.
I'm sure you could also use aluminum tubing for the same purpose.

Perhaps there's a better way, but I'm unaware of it.

73!
Frank
W3LPL

---- Original message ----
>Date: Mon, 20 Nov 2006 21:36:43 -0800
>From: Bill Turner <dezrat at copper.net>  
>Subject: [TowerTalk] Fastening sections of 3" boom material  
>To: towertalk at contesting.com
>
>I'm considering building a long yagi for 20 meters and I see the ARRL
>antenna book recommends using 3" aluminum tubing for the boom. One
>thing I don't find is how to connect the sections together. There
>doesn't appear to be a standard tubing size which would slip either
>inside or outside the 3" tubing to allow clamping or riveting. Or
>maybe I just missed it.
>
>Any suggestions?
>
>Bill, W6WRT
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